javacard

I have installed the new release of Java Card Platform Development Kit, according to the following guide . This includes all the prerequisites, as well as version 3.0.5u2 of JCDK. As a heads up, I tried installing this on 2 different computers (one has Win7, the other Win10) and reinstalled everything on both. The problem I'm encountering is that none of the sample projects will build properly. When I try to build the HelloWorld sample, for example, I get the following text printed in the build console: [ INFO: ] Converter [v3.0.5] [ INFO: ] Copyright (c) 1998, 2017, Oracle and/or its

I wrote the following program to return all the APDU buffer contents on reception of each APDU command: package testPack; import javacard.framework.APDU; import javacard.framework.Applet; import javacard.framework.ISOException; public class BufferReturner extends Applet { private BufferReturner() { } public static void install(byte bArray[], short bOffset, byte bLength) throws ISOException { new BufferReturner().register(); } public void process(APDU arg0) throws ISOException { if(selectingApplet()){ return; } arg0.setOutgoingAndSend((short)0, (short)255); } } When I send commands though the

I develop an applet which return some simulate bytes data(6 bytes) when it receive Read Records command from host application. I test applet with JCIDE, it work well. I also test it with virtual card reader by using pyApdutool, it work well too. But when I install applet on a card by using pyApdutool, use the same Read Records command, the card return "Unknown error" message. But when I don't set data in respond, the card return "90 00" message. apdu.setOutgoingAndSend((short) 0, (short)0) The applet was installed successful, using pyApdutool can select applet on the card. Here is Read Records

I am attempting a proof of concept under very constrained technological conditions. My question is: how to efficiently subtract big integers (represented as byte arrays) in a Java Card? . Now, the details are what make the task tricky. I have access to one smart card. The model is Feitian JavaCOS A22 and runs Java Card 2.2. For full detail, Java Card enables the usage of a very restricted subset of the Java API ( namely, no int , no char , and naturally, no BigInteger ), but it does support a series of cryptographic primitives that can be detailed on this list . In particular, my task is to

I am trying to test a Java Card applet to establish a connection to a simulator such as cref: try { sckClient = new Socket("localhost", 9025); InputStream is = sckClient.getInputStream(); OutputStream os = sckClient.getOutputStream(); cad = CadDevice.getCadClientInstance(CadDevice.PROTOCOL_T0, is, os); } catch (Exception e) { System.out.println("error"); return; } try { cad.powerUp(); } catch (IOException e) { e.printStackTrace(); } catch (CadTransportException e) { System.out.println("error"); try { sckClient.close(); } catch (IOException e1) { e1.printStackTrace(); } return; } My code get

I wrote the following program to change the Historical Bytes in the ATR of my smartcard to, for example, 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 . I use GPSystem.setATRHistBytes() to set the historical bytes. Note that 0x00 0x00 ... 0x00 is not the actual value that I'm using for the historical bytes but I censored it. The actual value is an array of 15 bytes that is equal to the historical bytes of another exisitng card. package org.globalplatform; import javacard.framework.*; import org.globalplatform.GPSystem; public class TestPrj extends Applet { public static final byte[] HIST_B

I'm new to SIM Cards and I'm trying to authenticate to a SIM Card using Gemalto JCardManager (part of Gemalto Developer Suite), with Gemplus USB SmartCard Reader. Aparently, i have all the necessary keys (kic, kid and kik), but i can't authenticate. In fact, i have two SIM's: one SIM Card R5 and one USIM Card R5. I have configured the keys files for both of them, but when i try to authenticate to the SIM Card R5, the following message appears: [ERROR ] <- 6D 00 Command Exception on command: Authenticate. Authentication failed : INITIALIZE UPDATE : unknown response : VOP sw=6D00 And when i try